Canadian journal of public health = Revue canadienne de sante publique · 1998
The effect of the urban ambient air pollution mix on daily mortality rates in 11 Canadian cities.
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Burnett R T, Cakmak S, Brook J R
Аннотация
OBJECTIVE: Determine the risk of premature mortality due to the urban ambient air pollution mix in Canada.
METHODS: The number of daily deaths for non-accidental causes were obtained in 11 cities from 1980 to 1991 and linked to concentrations of ambient gaseous air pollutants using relative risk regression models for longitudinal count data.
RESULTS: Nitrogen dioxide had the largest effect on mortality with a 4.1% increased risk (p < 0.01), followed by ozone at 1.8% (p < 0.01), sulphur dioxide at 1.4% (p < 0.01), and carbon monoxide at 0.9% (p = 0.04) in multiple pollutant regression models. A 0.4% reduction in premature mortality was attributed to achieving a sulphur content of gasoline of 30 ppm in five Canadian cities, a risk reduction 12 times greater than previously reported.
CONCLUSIONS: Ambient air pollution generated from the burning of fossil fuels is a risk factor for premature mortality in 11 Canadian cities.
METHODS: The number of daily deaths for non-accidental causes were obtained in 11 cities from 1980 to 1991 and linked to concentrations of ambient gaseous air pollutants using relative risk regression models for longitudinal count data.
RESULTS: Nitrogen dioxide had the largest effect on mortality with a 4.1% increased risk (p < 0.01), followed by ozone at 1.8% (p < 0.01), sulphur dioxide at 1.4% (p < 0.01), and carbon monoxide at 0.9% (p = 0.04) in multiple pollutant regression models. A 0.4% reduction in premature mortality was attributed to achieving a sulphur content of gasoline of 30 ppm in five Canadian cities, a risk reduction 12 times greater than previously reported.
CONCLUSIONS: Ambient air pollution generated from the burning of fossil fuels is a risk factor for premature mortality in 11 Canadian cities.